EN
Inputs
Each channel has a balanced XLR and terminal block input. The input impedance is 20k ohm balanced or 10k ohm unbalanced.
Balanced connections are recommended for less AC hum and interference, especially with long cable runs. Unbalanced con- nections may be suitable for short cables. The signal's source impedance should be less than 600 ohms. If the DataPort is being used to provide input signals to the amplifier, do not connect input signals to the XLR or terminal block connectors.
If unbalanced connection is necessary, connect the signal con- ductor to the connector’s + pin and the shield to the ground pin. Connect a jumper between the ground pin and the - pin.
Balanced Terminal Block inputs: Strip the wire ¼ inch (6 mm) and connect to the plug as shown. Be sure to tighten the screws firmly.
Unbalanced Terminal Block inputs: Strip the wire ¼ inch and connect to the plug as shown. The middle pin must be connected to the shield pin as shown. Be sure to tighten the screws firmly.
Balanced XLR inputs: Con- nect to the plug as shown.
Direct Low Impedance Outputs
Direct Low Impedance Output connections are shown on the back of the chassis, to the right of the output terminals. Care- fully note the polarity marks, which are arranged to make Bridge Mode connections easier.
Stereo and Parallel Mode- Connect each loudspeaker load to its own channel of the amplifier, as shown on the chassis label to the right of the terminals. The mode configuration switches, page 5, must be set for Stereo or Parallel mode.
Bridge Mode- Bridge mode configures the amplifier to drive a single, high power loudspeaker load. See page 5 to set the Bridge Mode switches. Connect the load as shown on label to the right of the terminals. Use the center two terminals labelled BRIDGE MONO. 4 ohms is the minimum impedance in bridged mode. Use Stereo or Parallel mode channels to drive 2 ohm loads.
BRIDGE MODE PRECAUTIONS: Do not use less than 4 ohm loads in bridge mode! 4 ohms is the minimum impedance for bridge mode operation.
OUTPUT TERMINAL SAFETY WARNING! Do not touch output terminals while amplifier power is on. Make all connections with amplifier turned off. Risk of hazardous energy!
WARNING! Risk of hazardous energy! Class 2 wiring shall be used.
ISA 1350 WARNING!: Use proper speaker wire. Class 2 wiring shall be used. For bridged mono mode, Class 3 wiring shall be used.
Unbalanced XLR inputs: Con- nect to the plug as shown. The - pin must be connected to the shield pin as shown.
Direct Low Impedance Outputs: Connect the loudspeakers as shown on the label next to the output terminals. Note Bridge Mono connection (center terminals) and polarity!
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